I’m getting a little exasperated here. I recently purchased a taz 6. Had reasonably good luck with the original single extruder, so decided to jump into the dual V3, fully expecting to have some failures due to being a noob - Lulzbot does advise a few months of single before getting into dual. And yep, I’ve run into many issues, such as having to reset the z axis regularly to avoid either scraping the bed or printing to thin air, lots of adhesion issues, lots of print quality issues, especially smearing between two colors or types of filament. I can accept that it takes some experience and experimentation to get those things dialed in, and have worked through some of them with trial and error and some Lulzbot support. Was hoping that at this price point things were a little more plug and play, but did fully expect a learning curve, and expect to have to learn more. A little frustrated, but not really all that worked up about these types of issues yet.
HOWEVER, two times in a row now, I’ve been partially through a large single material print and the extruder just stops; the extruder drive gear just stops moving, as if it’s not getting a signal. The carriage and bed keep moving normally, but the extrusion just stops at a random point. This is not a filament jam - I paused the print, and was able to manually (using fingers very slowly) to extrude just fine. Cables appear to be connect properly, Cura extrude button works. This is for about a 10 hour ABS print; 1st time it quit extruding at about the 2 hour point, 2nd time at about the 8 hour point. Arghh. This is lots of time and filament just thrown away. As far as what is there, the print quality seems to be okay - not great, but ok - probably just my own inexperience. For what it’s worth, I am using extruder 2 on the dual V3, with no 3d body assigned to extruder 1.** Filament is MatterHackers ABS, printing at 255.
Also, for some reason Cura keeps sinking the part -2 mm, reducing the overall height of my printed part. I change the z component to 0, then then it sinks back to -2mm when it slices. The part has some thin (.1 in) spots on the outer edges I’ve used to assist with adhesion in combination with the brim setting.
**I get how it would probably be better to switch back to the single extruder head, but nevertheless the extruder shouldn’t just quit.
The main reason I bought this machine was because of the combination of dual extrusion and large print volume. Right now, not so sure this was a good decision.
- has anybody else run into the extruder mechanism just stopping?
- any advise as far as what i need to check before i try again is appreciated.